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MR-OPERA :
MR-OPERA : A Multicenter/Multivendor Validation of Magnetic Resonance Imaging-Only Prostate Treatment Planning Using Synthetic Computed Tomography Images
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- Persson, Emilia (författare)
- Lund University,Lunds universitet,Medicinsk strålningsfysik, Malmö,Forskargrupper vid Lunds universitet,Medical Radiation Physics, Malmö,Lund University Research Groups,Skåne University Hospital,Skane Univ Hosp, Dept Hematol Oncol & Radiat Phys, Klinikgatan 5, S-22185 Lund, Sweden.;Lund Univ, Dept Med Phys, Malmo, Sweden.
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- Gustafsson, Christian (författare)
- Lund University,Lunds universitet,Medicinsk strålningsfysik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Medicinsk strålningsfysik, Malmö,Forskargrupper vid Lunds universitet,Radiotherapy Physics,Medical Radiation Physics, Lund,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,Medical Radiation Physics, Malmö,Lund University Research Groups,Skåne University Hospital,Skane Univ Hosp, Dept Hematol Oncol & Radiat Phys, Klinikgatan 5, S-22185 Lund, Sweden.;Lund Univ, Dept Med Phys, Malmo, Sweden.
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- Nordström, Fredrik (författare)
- Sahlgrens Univ Hosp, Dept Med Phys & Biomed Engn, Gothenburg, Sweden.,Sahlgrenska University Hospital
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- Sohlin, Maja (författare)
- Sahlgrens Univ Hosp, Dept Med Phys & Biomed Engn, Gothenburg, Sweden.,Sahlgrenska University Hospital
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- Gunnlaugsson, Adalsteinn (författare)
- Lund University,Lunds universitet,Tumörmikromiljö,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Tumor microenvironment,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Skåne University Hospital,Skane Univ Hosp, Dept Hematol Oncol & Radiat Phys, Klinikgatan 5, S-22185 Lund, Sweden.
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- Petruson, Karin (författare)
- Sahlgrens Univ Hosp, Dept Oncol, Gothenburg, Sweden.,Sahlgrenska University Hospital
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- Rintelä, Niina (författare)
- Karolinska Univ Hosp, Med Radiat Phys & Nucl Med, Stockholm, Sweden.,Karolinska University Hospital
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- Hed, Kristoffer (författare)
- Karolinska Univ Hosp, Med Radiat Phys & Nucl Med, Stockholm, Sweden.,Karolinska University Hospital
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- Blomqvist, Lennart (författare)
- Umeå universitet,Karolinska Institutet,Institutionen för strålningsvetenskaper,Karolinska Univ Hosp, Dept Diagnost Radiol, Stockholm, Sweden.;Umea Univ, Dept Radiat Sci, Umea, Sweden.;Karolinska Inst, Dept Mol Med & Surg, Stockholm, Sweden.
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- Zackrisson, Björn (författare)
- Umeå universitet,Umeå University,Institutionen för strålningsvetenskaper,Umea Univ, Dept Radiat Sci, Umea, Sweden.
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- Nyholm, Tufve (författare)
- Umeå universitet,Uppsala University,Uppsala universitet,Medicinsk strålningsvetenskap,Umea Univ, Dept Radiat Sci, Umea, Sweden,Institutionen för strålningsvetenskaper
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- Olsson, Lars E. (författare)
- Lund University,Lunds universitet,Medicinsk strålningsfysik, Malmö,Forskargrupper vid Lunds universitet,Medical Radiation Physics, Malmö,Lund University Research Groups,Lund Univ, Dept Med Phys, Malmo, Sweden.
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- Siversson, Carl (författare)
- Lund University,Lunds universitet,Medicinsk strålningsfysik, Malmö,Forskargrupper vid Lunds universitet,Medical Radiation Physics, Malmö,Lund University Research Groups,Spectronic Medical AB,Spectron Med AB, Helsingborg, Sweden.
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- Jonsson, Joakim (författare)
- Umeå universitet,Umeå University,Institutionen för strålningsvetenskaper,Umea Univ, Dept Radiat Sci, Umea, Sweden.
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(creator_code:org_t)
- ELSEVIER SCIENCE INC, 2017
- 2017
- Engelska.
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Ingår i: International Journal of Radiation Oncology, Biology, Physics. - : ELSEVIER SCIENCE INC. - 0360-3016 .- 1879-355X. ; 99:3, s. 692-700
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Abstract
Ämnesord
Stäng
- Purpose: To validate the dosimetric accuracy and clinical robustness of a commercially available software for magnetic resonance (MR) to synthetic computed tomography (sCT) conversion, in an MR imaginge-only workflow for 170 prostate cancer patients.Methods and Materials: The 4 participating centers had MriPlanner (Spectronic Medical), an atlas-based sCT generation software, installed as a cloud-based service. A T2-weighted MR sequence, covering the body contour, was added to the clinical protocol. The MR images were sent from the MR scanner workstation to theMriPlanner platform. The sCT was automatically returned to the treatment planning system. Four MR scanners and 2 magnetic field strengths were included in the study. For each patient, a CT-treatment plan was created and approved according to clinical practice. The sCT was rigidly registered to the CT, and the clinical treatment plan was recalculated on the sCT. The dose distributions from the CT plan and the sCT plan were compared according to a set of dose-volume histogram parameters and gamma evaluation. Treatment techniques included volumetric modulated arc therapy, intensity modulated radiation therapy, and conventional treatment using 2 treatment planning systems and different dose calculation algorithms.Results: The overall (multicenter/multivendor) mean dose differences between sCT and CT dose distributions were below 0.3% for all evaluated organs and targets. Gamma evaluation showed a mean pass rate of 99.12% (0.63%, 1 SD) in the complete body volume and 99.97% (0.13%, 1 SD) in the planning target volume using a 2%/ 2-mm global gamma criteria.Conclusions: Results of the study show that the sCT conversion method can be used clinically, with minimal differences between sCT and CT dose distributions for target and relevant organs at risk. The small differences seen are consistent between centers, indicating that an MR imagingeonly workflow using MriPlanner is robust for a variety of field strengths, vendors, and treatment techniques.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
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Persson, Emilia
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Gustafsson, Chri ...
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Nordström, Fredr ...
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Sohlin, Maja
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Gunnlaugsson, Ad ...
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Petruson, Karin
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visa fler...
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Rintelä, Niina
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Hed, Kristoffer
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Blomqvist, Lenna ...
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Zackrisson, Björ ...
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Nyholm, Tufve
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Olsson, Lars E.
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Siversson, Carl
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Jonsson, Joakim
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- MEDICIN OCH HÄLSOVETENSKAP
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och Klinisk medicin
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Uppsala universitet
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Karolinska Institutet
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Lunds universitet
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Umeå universitet